A particle leaves the origin with an initial velocity $\overrightarrow{\text{v}}=\left(\text{3.00}\widehat{\text{i}}\right){\text{ms}}^{-1}$ and a constant acceleration $\overrightarrow{\text{a}}=\left(-\text{1.00}\widehat{\text{i}}-\text{0.5}\widehat{\text{j}}\right){\text{ms}}^{-2}$ . When the particle reaches it maximum $x$-coordinate, what is the magnitude of its velocity (in m/s) in $y$-direction? If your answer is K, mark 2K as answer after rounding off to nearest integer.